Nonlinear characterisation of a rotor on passive magnetic supports

An experimental campaign is performed on a levitating magnetic spinning top with horizontal axis manufactured for educational purposes. The experimental setup and measurement methods, used during the operative phases of this analysis, are described in detail and then the acquired data are shown and post-processed in order to develop a model to characterise magnetic rotor behaviour. This approach is not simply restricted to the study of the presented magnetic spinning top, but it is proposed as analysis tool for the characterisation of any other rotor configuration on passive magnetic supports, such as those used as kinetic energy accumulators.